2008 MERCEDES-BENZ CL-Class flat tire

675 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Tele Aid
Inoperative
One or more main functions of the Tele Aid
system are malfunctioning.

Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
Tire Press. Warning
Caution
Tire Malfunction
Advanced TPMS:
One or more tires are deflating.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 412).

If necessary, change the wheel (
page 696).

676 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Caution
Tire Defect
Advanced TPMS:
One or more tires are deflating. The respec-
tive tire is shown in the multifunction
display.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 412).

If necessary, change the wheel (
page 696).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated. Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.

677 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Tire Pressure
Advanced TPMS:
The pressure is too low in one or more tires.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 412).

Check and adjust tire inflation pressure as
required (
page 575).

If necessary, change the wheel (
page 575).

678 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Check Tires
Advanced TPMS:
The pressure is too low in one or more tires.
The respective tire is shown in the multi-
function display.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 412).

Check and adjust tire inflation pressure as
required (
page 575).

If necessary, change the wheel (
page 575).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated. Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.

679 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Wheel Sensor(s)
Missing
One or more sensors malfunction (e.g. bat-
tery in one or more wheel sensor is empty).
One or more wheels without wheel sensors
mounted (e.g. spare tire).
No pressure value is shown on the multi-
function display for the tire in question.

Have the Advanced TPMS checked by an
authorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
The tire pressure for the respective tire is
shown in the multifunction display after a few
minutes driving.
Tire Pressure
Please Rectify
Advanced TPMS:
The pressure is too low in one or more tires.
Or the tire pressures of the individual
wheels differ too radically from one
another.

Check and adjust tire inflation pressure as
required (
page 575).

696 Practical hintsFlat tirePreparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.

Turn on the hazard warning flasher
(page 397).

Turn the steering wheel so that the
front wheels are in a straight ahead
position.

Shift the automatic transmission to
park positionP.

Engage the electronic parking brake.

Turn off the engine.

Have any passenger exit the vehicle at
a safe distance from the roadway.

Vehicles with SmartKey: Remove the
SmartKey from the starter switch.
Vehicles with KEYLESS-GO*: Open the
driver’s door (this puts the starter
switch in position0, same as with the
SmartKey removed from the starter
switch). The driver’s door then can be
closed again.
Remove the KEYLESS-GO*
start/stop button from the starter
switch.
Mounting the spare wheel
i
Open the door only when conditions are safe
to do so.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire inflation pressure and
do not exceed a vehicle speed
of 50 mph (80 km/h).
Contact the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a spare
wheel is mounted.

697 Practical hints
Flat tire
Preparing the vehicle
Prepare the vehicle as described
(page 696).

Take vehicle tool kit and vehicle jack
out of trunk (
page 681).

Take the spare wheel and wheel bolts
out of the trunk (
page 683).Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
or other sizeable objects.
One wheel chock is included with the
vehicle tool kit (
page 683).
When changing wheel on a level surface:

Place the wheel chock in front of and
another sizeable object behind the
wheel that is diagonally opposite to the
wheel being changed.
Always try lifting the vehicle using the jack
on a level surface. However, should cir-
cumstances require you to do so on a hill,
place the wheel chock and another size-
able object as follows:

Place the wheel chock and another
sizeable object on the downhill side
blocking both wheels on the side of the
vehicle not being worked on.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always en-
gage the electronic parking brake and block
wheels before raising vehicle with jack.
Do not disengage electronic parking brake
while the vehicle is raised. Be certain that
the jack is always vertical (plumb line) when
in use, especially on hills. Always try to use
the jack on level surface.
Make sure the jack arm is fully seated in the
jack take-up bracket. Always lower the vehi-
cle onto sufficient capacity jackstands be-
fore working under the vehicle.


698 Practical hintsFlat tire1Wheel wrench
On wheel to be changed, loosen but do
not yet remove the wheel bolts (ap-
proximately one full turn with wheel
wrench1).
The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.2Jack take-up bracket
3Jack
4Crank

Place jack3 on firm ground.

Position jack3 under take-up
bracket2 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an
incline.

Turn crank4 clockwise until jack3
is fully seated in take-up bracket2
and the jack base evenly meets the
ground.

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while
vehicle is raised.